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We spend a lot of time on them so it’s important to get the right mattress. But buying one can be confusing. Some use springs while others are made out of foam - or there’s a combination of both. Then there’s memory foam, with brands like Tempur claiming to make their mattresses out of ‘proprietary’ material. And can a good mattress help to alleviate back pain?

These are the questions keeping listener Stephen up at night and he tasks presenter Greg Foot with finding out more. Greg speaks to experts in the mattress industry and a sleep specialist, looking at the scientific evidence to test whether the claims made by mattress manufacturers live up to the marketing hype.

This series, we’re testing and investigating your suggested wonder-products. If you’ve seen an ad, trend or fad, and wonder if there’s any evidence to back up a claim, drop us an email to sliced.bread@bbc.co.uk or you can send us a voice note to our WhatsApp number: 07543 306807.

Presenter: Greg Foot
Producer: Simon Hoban